package com.tablefood.utils;

import java.util.List;

import com.tablefood.domain.ShopCart;
import com.tablefood.domain.ShopProduct;

public class PageCartBean {

	private List<ShopCart> list; // 要返回的某一页的记录列表
	private int allRow; // 总记录数
	private int totalPage; // 总页数
	private int currentPage; // 当前页
	private int pageSize; // 每页的记录数
	private boolean isFirstPage; // 是否为当前第一页
	private boolean isLastPage; // 是否为最后一页
	private boolean hasPreviousPage; // 是否有前一页
	private boolean hasNextPage; // 是否有下一页
	
	/**
	 * 初始化分页信息
	 */
	public void init() {
		this.isFirstPage = isFirstPage;
		this.isLastPage = isLastPage;
		this.hasPreviousPage = hasPreviousPage;
		this.hasNextPage = hasNextPage;
	}

	/**
	 * 计算总页数 静态方法
	 * 
	 * @param pageSize
	 *            每页的记录数
	 * @param allRow
	 *            总记录数
	 * @return 总页数
	 */
	public static int countTatalPage(final int pageSize, final int allRow) {
		int toalPage = allRow % pageSize == 0 ? allRow / pageSize : allRow / pageSize + 1;
		return toalPage;
	}

	/**
	 * 计算当前页开始的记录
	 * 
	 * @param pageSize
	 *            每页记录数
	 * @param currentPage
	 *            当前第几页
	 * @return 当前页开始记录号
	 */
	public static int countOffset(final int pageSize, final int currentPage) {
		final int offset = pageSize * (currentPage - 1);
		return offset;
	}

	/**
	 * 计算当前页，若为0或者请求的URL中没有“?page = ”则用1代替
	 * 
	 * @param page
	 *            传入的参数（可能为空，即0 则返回1）
	 * @return
	 */
	public static int countCurrentPage(int page) {
		final int curpage = (page == 0 ? 1 : page);
		return curpage;
	}
	
	public List<ShopCart> getList() {
		return list;
	}

	public void setList(List<ShopCart> list) {
		this.list = list;
	}

	public int getAllRow() {
		return allRow;
	}

	public void setAllRow(int allRow) {
		this.allRow = allRow;
	}

	public int getTotalPage() {
		return totalPage;
	}

	public void setTotalPage(int totalPage) {
		this.totalPage = totalPage;
	}

	public int getCurrentPage() {
		return currentPage;
	}

	public void setCurrentPage(int currentPage) {
		this.currentPage = currentPage;
	}

	public int getPageSize() {
		return pageSize;
	}

	public void setPageSize(int pageSize) {
		this.pageSize = pageSize;
	}

	public boolean isFirstPage() {
		return isFirstPage;
	}

	public void setFirstPage(boolean isFirstPage) {
		this.isFirstPage = isFirstPage;
	}

	public boolean isLastPage() {
		return isLastPage;
	}

	public void setLastPage(boolean isLastPage) {
		this.isLastPage = isLastPage;
	}

	public boolean isHasPreviousPage() {
		return hasPreviousPage;
	}

	public void setHasPreviousPage(boolean hasPreviousPage) {
		this.hasPreviousPage = hasPreviousPage;
	}

	public boolean isHasNextPage() {
		return hasNextPage;
	}

	public void setHasNextPage(boolean hasNextPage) {
		this.hasNextPage = hasNextPage;
	}
	
}
